Cyclone overflow pulp classification system and pulp classification process

Abstract

The invention relates to a cyclone overflow pulp classification system and a pulp classification process. Pulp enters a first-grade cyclone for centrifugal separation; particles larger than 74 microns are discharged from a sand settling port of the first-grade cyclone; particles smaller than 74 microns are discharged from an overflow port of the first-grade cyclone; after the particles are cached by a buffer tank, the particles are fed from a first-grade slurry pump to a second-grade cyclone for centrifugal separation; particles larger than 37 microns are discharged from a sand settling port of the second-grade cyclone; particles smaller than 37 microns are discharged from an overflow port of the second-grade cyclone for removing large residues by a 0.5 mm slag separation sieve; after the pulp removed away the large residues enters a stirring tank for uniform stirring, the pulp is fed from a second-grade slurry pump to a 0.8 mm filter for impurity removal; the pulp, with impurities removed away, enters an inclined disc classifier for classification; settled sand of the classifier is discharged from a bottom flowing discharge port of the inclined disc classifier; and an overflow of the classifier is discharged from an overflow discharge port of the inclined disc classifier for entering a tailing. The classification system and process can improve the recovery rate of targeted ores to promote the economic benefit.

Description

technical field [0001] The invention relates to a beneficiation system, in particular to a cyclone overflow pulp classification system; the invention also relates to a cyclone overflow pulp classification process, which belongs to the technical field of pulp treatment. Background technique [0002] At present, the world's resources are increasingly depleted, and the utilization rate of resources is generally not high. In order to improve the recovery rate of minerals and avoid waste of resources. Mineral dressing mostly adopts the principles of "early harvesting and early throwing", combined with coarse and subdivided sorting methods to improve efficiency and reduce costs. But at present, rich ore resources are depleting day by day, and poor, miscellaneous, and fine-grained disseminated ores are increasing year by year. Therefore, fine grinding ore to achieve monomer dissociation must become a common measure to improve mineral processing indicators. When the minerals reach ...

AI Technical Summary

Problems solved by technology

[0004] Fine-grained minerals are directly discarded into the tailings, reducing the recovery rate of the target minerals, causing waste of resources, and indirectly increasing the cost of beneficiation

If it is directly sorted, the feed concentration may not meet the process requirements, and due to the influence of some ultra-fine-grained minerals, the load on the equipment in the next section will be increased, the recovery rate of the target minerals is low, and the cost of sorting is high, which cannot meet the economic requirements.

Images